ES2290862T3 - CROSSBOOK FOR MOTOR VEHICLE AND ASSOCIATED VEHICLE. - Google Patents

Abstract

The cross-unit has a knee brace comprising a stationary part (41) and a movable part (43) and connecting a beam to a floor of a vehicle. The movable part moves relative to the stationary part between a retracted position and an extended position. Resilient blades (83) provide frictional cooperation between the stationary part and the movable part. The blades are joined to the brace for being carried into a deployed position. Independent claims are also included for the following: (A) a motor vehicle comprising a cross-unit (B) a method for mounting a cross-unit in a bodywork of a motor vehicle.

Description

Crossbar for motor vehicle and vehicle associated.

The present invention relates to a crossbar for a motor vehicle according to the preamble of claim one.

The invention applies in particular to a vehicle dashboard crossbar.

The crossbars of the aforementioned type are intended to be mounted inside the box of a vehicle car. For this purpose, the lateral extremities of the beam are fixed to the uprights called "A" of the box and the lower extremity of the wild boar is fixed on the floor of the vehicle.

To perform this assembly, the crossbar is inserted inside the vehicle case through an opening from the box.

To decrease the volume of the crossbar during its introduction in the box, the mobile part of the wild boar is held in its retracted position by a removable pin that solidarity the mobile part with the fixed part and forms the means of retention.

Once the crossbar inserted in the vehicle, the pin is removed and the movable part of the wild boar is moved towards the floor of the vehicle, then fixed on the floor. The fixed and mobile parts are then fixed between them thanks to a supplementary screw.

Such a structure is not entirely satisfactory. Indeed, there is a risk that the retention pin between the fixed part and the moving part is abandoned in the vehicle after of the crossbar assembly on the floor.

FR 2,739,602 describes a vehicle crossbar car comprising a beam and a wild boar in two parts.

An objective of the invention is to solve this problem by providing a crossbar of the aforementioned type that limits the risks of loss in the vehicle of one or several pieces of the means of retention.

For this purpose, the invention aims at a crossbar according to claim 1.

According to particular embodiments, the crossbar can comprise one or more of the features following which are the subject of claims 2 to 11.

The object of the invention is also a motor vehicle according to claim 1.

According to a variant, the vehicle can understand:

- at least two uprights and first means fixing the beam to the uprights;

- at least one floor and a few seconds means of fixing the moving part to the floor;

The object of the invention is also a assembly procedure according to claim 14.

The invention will be better understood with the description below, given by way of example only, and referring to the attached drawings in which:

- Figure 1 is a partial schematic view in cross section of the box of a vehicle provided with a dashboard crossbar according to the invention, the moving part in deployed position;

- Figure 2 is a view of a detail of the crossbar of figure 1, taken according to arrow II of figure one;

- Figure 3 is a side view of a detail of figure 2, taken in section according to the line III-III of Figure 2;

- Figure 4 is a view of a detail of the Figure 1, the part being the moving part in its position retracted;

- Figure 5 is a view, taken in section according to line V-V of figure 4, of a variant of the crossbar of Figure 4; Y

- Figure 6 is a view analogous to the figure 5, the moving part being in its deployed position.

In what follows, the orientations used They are the usual orientations of a motor vehicle. So the terms "in front", "behind" "left", "right", "upper" and "lower" are understood as relation to the direction of travel of the motor vehicle and the position of a driver.

       \ newpage
    

Figure 1 illustrates a board cross member 11 of instruments for motor vehicles, mounted on elements 13 of the vehicle case.

These elements 13 comprise two uprights lateral 15A and 15B called uprights "A", to the left and to right respectively to figure 1, and a floor 17.

The 17th floor has a tunnel in its middle part 19 U section inverted. A fixing member 21 protrudes on the upper surface 23 of tunnel 19. A threaded passage 24 parallel to a longitudinal axis X-X 'of the vehicle it is practiced in the fixation organ 21.

The cross member 11 comprises a beam 25 and at least a wild boar 27 that protrudes down in relation to beam 25.

Beam 25 comprises a tube 29 and two plates of connection 31A and 31B to the uprights 15A and 15B of the box 13, arranged to the left and right extremities respectively of the beam 25.

As illustrated in Figure 1, the tube 29 is extends along a Y-Y 'axis substantially transverse and horizontal in relation to the longitudinal axis X-X ' of the motor vehicle. Present, for example, a section noticeably circular over its entire length.

The tube 29 is intended to support organs of binding (not represented) to vehicle equipment, especially steering column or dashboard brackets.

Fixing plates 31A and 31B extend along a plane perpendicular to the transverse axis Y-Y '. In the example illustrated in Figure 1 the plates 31A and 31B are arranged supported on the uprights 15A and 15B of the vehicle and are fixed on these uprights 15A and 15B by some screws (not shown). Thus, beam 25 is mounted in solidarity with the left and right uprights 15A and 15B of the vehicle. Other ways of joining the lateral extremities of the Part 25 can be considered.

The wild boar 27 extends along an axis Z-Z 'substantially inclined relative to an axis vertical, towards the 17th floor of the vehicle.

It comprises a fixed part 41, a mobile part 43 slidably mounted on the fixed part 41 and means 45 of retention of the movable part 43 relative to the fixed part 41.

The fixed part 41 is fixed by its tip upper 47 to an intermediate part of beam 25.

The fixed part 41 comprises an upper region 49 of substantially flat shape and a lower region 51 constituted  by a V-shaped cross section profile.

The lower region 51 has two flanks 53A and 53B, joined together by a side edge 55. Each flank 53A, 53B on the other hand has a free outer edge 57A, 57B.

As illustrated in Figure 2, the fixed part 41 it also comprises, near its lower extremity 59, a first cylindrical shoulder 61, in which a first hole is arranged drilling 63 from orthogonal axis to Z-Z 'axis. This drilled hole 63 receives a fixing screw (no represented) of the fixed part 41 in relation to the mobile part 43 when the cross member 11 is mounted on the vehicle.

The mobile part 43 comprises a section profile transverse in V, substantially complementary to the region bottom 51 of the fixed part 41.

The mobile part 43 has two side parts 65A and 65B. Each side part 65A 65B is disposed supported on a flank 53A, 53B in front of the lower region 51 of the part fixed 41.

As illustrated in figure 2, the side part 65B, on the left in this figure, presents near its limb bottom 67, a second cylindrical shoulder 71 in which it is practiced a second hole drilled 73. This second hole drilling 73 receives a set screw (not shown) from the moving part 43 on the fixing member 21 of the floor 19 of the vehicle when cross member 11 is mounted on the vehicle.

The two side parts 65A, 65B of the part mobile 43 are joined together according to a side edge 75. By On the other hand, each side part 65A, 65B of the mobile part comprises one edge pounds 77A, 77B.

The mobile part 43 is mobile by sliding to along the perpendicular axis Z-Z 'in relation to the fixed part 41, between a retracted position in which the moving part 43 is near beam 25, and an unfolded position, in which the moving part 43 is away from the beam 25.

       \ newpage
    

As illustrated in Figure 3, means 45 of retention of the movable part 43 on the fixed part 41 include:

- on each free edge 77A, 77B of the part mobile 43, a guide 81A, 81B, and

- on each free edge 57A, 57B of the part fixed 41, at least one elastic sheet 83. In the illustrated example, the retention means 45 comprise two sheets 83 on each free edge 57A, 57B.

Only the structure of the guide 81A on the free edge 77A of the moving part 43. The Guide structure 81B is analogous to that of guide 81A. Likewise, only the structure of the sheets 83 on the free edge 57A of the fixed part 41, the structure of the sheets 83 on the free edge 57B of the fixed part 41 analogous to that of the sheets 83 on the free edge 57A.

As illustrated by Figure 3, guide 81A is formed by a crease of the free edge 77A parallel to the axis Z-Z '. The fold is oriented inwards of the profile constituting the mobile part 43.

The upper extremity 82 of the guide 81A It presents a widened part facilitating the introduction of the fixed part 41 in guide 81A.

Guide 81A has a cross section in U-shape with two side walls 85 substantially parallel.

The free edge 57A of the fixed part 41 is introduced in guide 81A opposite.

The elastic sheets 83 are arranged on the free edge 57A of the fixed part 41, by drawing. These plates 83 come from matter with the fixed part 41. As illustrated by Figure 3, the plates 83 have a limb 87 in support on a wall 85 of the guide 81A opposite.

On the other hand, under the effect of elasticity of the plates 83, a face 88 of the lower region 51 of the part fixed 41, opposite the plates 83, rests on the other wall 85 of guide 81A.

Thus, the guide 81A and the elastic sheets 83 They comprise respectively regions that cooperate by friction.

In the example illustrated in Figure 3, you are regions cooperate by friction, whatever the position of the movable part 43 between its retracted position and its position deployed

In a variant, these regions can only cooperate when the mobile part 43 is in its retracted position.

The assembly of a crossbar 11 according to the invention in box 13 of a vehicle will now be described.

Initially, the mobile part 43 is held in its retracted position. Near beam 25, as illustrated to figure 4. The friction between the fixed part 41 and the moving part 43 obtained thanks to the elastic sheets 83 keeps the moving part 43 in its retracted position. It will be noted that this maintenance is assured without an additional part being necessary.

The cross member 11 thus presents a volume minimum.

In a second time, an operator or a robot of assembly inserts the crossbar 11 into the box via an opening and fix the side parts 31A, 31B of the beam 25 on the uprights 15A, 15B opposite.

In a third time, the operator moves through sliding the moving part 43 along the fixed part 41, between its retracted position and its deployed position, exceeding the frictional force between the fixed part 41 and the mobile part 43

During this shift, the operator can adjust the position of the moving part 43 according to the characteristics of the vehicle, and especially the position of the upper surface 23 of tunnel 19 in the vehicle, without risk that the movable part 43 is released from the fixed part 41.

In the deployed position, the second hole drilling 73 of the moving part 43 is in front of the threaded passage  24 on the fixing member 21. The operator then fixes the lower extremity 67 of the movable part 43 on the tunnel 19 introducing a screw into the second hole drilled 73 and the filleted passage 24.

In a fourth time. The operator punches the moving part 43 in front of the first drilled hole 63 of the part fixed 41. Then insert a screw (not shown) into this drilled hole 63 in order to make the fixed part 41 integral with the mobile part 43.

In a first variant, elastic sheets 83 are arranged only according to a free edge 57A of a single flank 53A of the fixed part 41. The free edge 57B of the other flank side 53B of the fixed part 41 is then devoid of sheet elastic 83. This variant simplifies the procedure of manufacture of the fixed part 41.

In a second variant, the elastic sheets 83 are formed from parts other than the fixed part 41, added overhanging this fixed part 41.

In a third variant, represented online of points to figure 3, housing 101 for receiving the extremities 87 of the elastic sheets 83 are arranged in a top of a wall 85 of guide 81A, in order to receive the tip 87 of the blades 83 when the movable part 43 is in its deployed position. The displacement of the mobile part 43 more beyond its deployed position it is thus impeded.

In a fourth variant, illustrated by the Figures 5 and 6, the retention means 45 comprise an organ of Locking 201 fixed to the fixed part 41, and a locking hole 203, which is arranged in the mobile part 43 and which the organ receives lock 201 when the moving part 43 is in position retracted

The locking member 201 comprises a leg 205 elastically deformable a lower extremity 207 of which is fixed on a rear face 209 of the fixed part 41 to opposite of the mobile part 43. It comprises on the other hand in its free limb a locking ram 211 inserted in a passage 213. Passage 213 is arranged on a flank 53B of the fixed part 41, in a medium part of this flank 53B.

When the moving part 43 is in position retracted, the locking hole 203 is arranged in front of the passage 213. In this position, the locking ram 211 is mobile by deformation of leg 205 between a locked position, in the which is inserted in the locking hole 203 (figure 5) and a release position outside the locking hole 203.

To move the mobile part 43 from its position retracted to its deployed position, the operator pushes the locking ram 211 towards the rear face 209 of the moving part 43, from its locked position to its release position, after move the moving part 43 to its retracted position, such as described above, by sliding along the part fixed 41.

During the movement of the mobile part 43 a along the fixed part 41, the locking ram 211 is resting on the lateral part 65B opposite, as represented by the figure 6.

In variant, an accommodation 101 receiving the locking ram 211 can also be provided in the part mobile 43 above the locking hole 203.

When the mobile part is deployed, the housing 101 is arranged in front of passage 113 and the ram lock 211 is received in housing 101 in order to keep the moving part 43 in its deployed position.

In another variant, the locking member 201 may be mounted on the movable part 43 and the locking hole 203 can be arranged in the fixed part 41.

Thanks to the invention that has just been describe, it is possible to have a vehicle cross member 11 car, small volume, thanks to the presence of a wild boar 27 presenting a mobile part 43 that can be removed.

The friction cooperation between the party mobile 43 and the fixed part 41 of the wild boar 27 prevents the use of a retaining pin between these two pieces when the moving part 43 is retracted. The risk of loss of parts in the vehicle, after mounting the crossbar 11 is thus avoided. For other part, the absence of pin decreases the number of pieces to catalog during vehicle assembly and simplify by consequently this assembly.

Claims (14)

1. Crossbar (11) for motor vehicle, of type comprising: - a beam (25) - at least one wild boar (27), to join the beam (25) to the floor (17) of the vehicle, comprising the wild boar (27): * a fixed part (41) integral with the beam (25); * a mobile part (43) in relation to the part fixed (41) between a retracted position and at least one position unfolded of union with the floor (17) of the vehicle; Y * means (45) for retaining the part mobile (43) in its retracted position; characterized in that the retaining means (45) are integrated to the boar to be carried by it in the deployed position and because the movable part (43) is movable from its retracted position to its deployed position by a mounting operator. 2. Crossbar according to claim 1, characterized in that the movable part (43) is manually movable along the fixed part (41) from its retracted position to its deployed position. 3. Crossbar (11) according to one of claims 1 or 2, characterized in that the retention means (45) comprise a locking member (201) on one of the fixed (41) and movable parts (43), and a hole of blocking (203) arranged in the other of the fixed (41) and mobile (43) parts, the blocking member (201) being mobile between a blocking position, into which it is inserted in the blocking hole (203) and a release position away from the locking hole (203). 4. Crossbar (11) according to one of claims 1 or 2, characterized in that the retention means (45) are retention means (45) by friction of the movable part (43) on the fixed part (41). 5. Cross member (11) according to claim 4, characterized in that the retention means (45) comprise at least one friction region (83) on the fixed part (41) and at least one friction region (81) on the part mobile (43), cooperating the friction regions (81, 83) by friction at least when the mobile part (43) is in its retracted position. 6. Crossbar (11) according to claim 5, characterized in that the friction regions (81, 83) further cooperate by friction at least when the movable part (43) occupies an intermediate position between the retracted position and the deployed position. 7. Crossbar according to one of claims 5 or 6, characterized in that the fixed part (41) comprises two flanks (53A, 53B) each having at least one friction region (83). 8. Crossbar (11) according to any one of claims 5 to 7, characterized in that the friction regions (81, 83) come from matter with the fixed part (41) and the mobile part (43) respectively. 9. Crossbar (11) according to any one of claims 4 to 8, characterized in that the retention means (45) comprise at least one sheet (83) protruding relative to one of the fixed (41) and movable parts (43) and a guide (81A, 81B) for receiving the sheet (83), arranged on the other of the fixed (41) and mobile (43) parts. 10. Crossbar according to any one of the preceding claims, characterized in that it comprises blocking means (101) preventing the movement of the movable part (43) in relation to the fixed part (41) beyond the deployed position. 11. Crossbar (11) according to claims 9 and 10 together, characterized in that the locking means (101) comprise at least one housing (101) disposed on a guide wall (81A, 81B), with one end (7) being of the sheet (83) received in the housing (101) when the movable part (43) is in the deployed position. 12. Motor vehicle, characterized in that it comprises a crossbar (11) according to one of the preceding claims. 13. Vehicle according to claim 12, characterized in that it comprises: - at least two uprights (15A, 15B) and about first means (31A, 31B) for fixing the beam (25) to the uprights (15A, 15B); - at least one floor (17) and a few seconds seconds (21, 71) for fixing the moving part (43) with the floor (17). 14. Method of mounting a crossbar (11) according to any one of claims 1 to 11 in the box (13) of a motor vehicle, characterized in that it comprises the following steps: - holding the moving part (43) in position retracted by the retention means (45); - introduction and fixation of the beam (25) in the box (13); - sliding by sliding part mobile (43) along the fixed part (41) between its position retracted and its position deployed; - fixing the moving part (43) on the floor (17) of the vehicle; Y - solidarity of the fixed part (41) and of the moving part (43).